As of July 2026, Magnum, P.I. Season 1 aired in 1980 with 18 episodes — streaming now on ITVX Premium. Full episode guide and where to watch below.
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Magnum, P.I. Season 1

1980 18 Episodes Crime · Drama ⭐ 7/10

If you want a crime drama that treats its mystery as more than a puzzle, Magnum, P.I. Season 1 is available on right now. The show says what it needs to say in a single season, no filler. 448 people have weighed in on TMDB, and the verdict leans heavily positive. Tom Selleck anchors it, but the writing does the real work. There is no real reason to keep putting it off.

Part of the current wave of titles people are actually watching, Magnum, P.I. Season 1 earns its spot. Magnum, P.I. Season 1 treats its mystery as a means, not an end in itself. Season 1 of Magnum, P.I. Includes 18 episodes. It aired from December 1980 to April 1981. Tom Selleck and John Hillerman lead a cast that brings real weight to the material. It was aired in 1980. What makes Magnum, P.I. Season 1 hold up is that the resolution matters less than how the characters get there. It knows exactly what it is, and does not try to be anything else.

For anyone who wants their crime drama to earn its twists, Magnum, P.I. Season 1 delivers. If you have run out of similar titles to watch, this is a strong next pick. The complete run is available and best experienced without too much prior knowledge of where it goes. Tom Selleck carries scenes that would sink a lesser production. The resolution feels inevitable rather than arbitrary, which is rarer than it sounds.

📡 Where to Watch Magnum, P.I. Season 1

🇬🇧 United Kingdom
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🎬 Magnum, P.I. Season 1 — Episode Guide

E1
Don't Eat the Snow in Hawaii (1)
1980-12-11
When Thomas's childhood friend and Naval comrade Dan Cook turns up dead, Thomas is adamant that the official cause of death, a burst bag of smuggled cocaine, is bogus, and enlists the aid of Dan's sister Alice in taking on the Navy to uncover the true nature of the top-secret assignment Dan was work...
E2
Don't Eat the Snow in Hawaii (2)
1980-12-11
Magnum and Alice continue in their quest to find out the truth behind Lt. Dan Cook's death, and find themselves uncovering a case of gold smuggling, and a criminal mastermind whom Magnum and Dan once knew in Vietnam. But in trying to find out what really did happen to his deceased friend, Magnum put...
E3
China Doll
1980-12-18
Magnum is hired by a beautiful Chinese antiques dealer that he's making a play for to protect a precious ancient vase—The Soul of Sung—until its buyer arrives in Hawaii to collect it. But unbeknownst to him, the priceless ornament is wanted by a Tong gang from the girl's home country, and a deadly m...
E4
Thank Heaven for Little Girls and Big Ones Too
1980-12-25
It's the Christmas season, and against his better judgment, Magnum agrees to being hired by five young schoolgirls to find their teacher, who has seemingly gone missing after falling in love. While he's working on the case, Magnum manages to convince Higgins to let the young girls stay on the Master...
E5
No Need to Know
1981-01-08
Magnum returns from a case to find that Higgins' old Army commander is staying on the Masters estate, under tight security, until some I.R.A. members he helped capture are tried. Two secret intelligence agents hire Magnum to protect the brigadier and foil assassins out to kill him before the terrori...
E6
Skin Deep
1981-01-15
When a beautiful model-actress is killed by a shotgun blast in a scenario closely resembling a scene from the script of an upcoming film, it is seemingly suicide. Magnum is hired by her former producer and lover to investigate any other men that she may have been seeing before her death.
E7
Never Again... Never Again
1981-01-22
When Saul and Lena, an aging couple who run a local shop, abruptly make plans to leave town, suspicious Magnum and Rick, who are friends with the couple, investigate.
E8
The Ugliest Dog in Hawaii
1981-01-29
Higgins volunteers Magnum's services to guard a wealthy socialite's quarantined dog after the attempted dognapping of the canine. Sir Algernon Farnsworth soon finds himself to be the most wanted dog in Hawaii when his former owner, aging gangster Victor DiGiorgio, needs to get him back.
E9
Missing in Action
1981-02-05
Although Eric Tobin was reported missing in action over eight years ago, his fiancee, Laura Fraser, endowed with ESP, doesn't believe it. Magnum befriends her and, in finding out the truth about Tobin, discovers that he was a highly trained and effective government agent working under the control of...
E10
Lest We Forget
1981-02-12
Magnum is hired by a Supreme Court nominee to find the woman he married on the eve of the raid on Pearl Harbor.
E11
The Curse of the King Kamehameha Club
1981-02-19
Rick is organizing a surf-ski competition to be held at the King Kamehameha Club (much to the disapproval of co-committee member Higgins) when a Kahuna appears and places a "curse" on the club and all who use it.
E12
Thicker than Blood
1981-02-26
T.C. makes a late-night flight to land on a tanker, but on the journey back he is cornered and arrested by the Coast Guard for transporting drugs. Magnum and Rick are certain of their friend's innocence, but are shocked when he intends to accept the charges and refuses their help.
E13
All Roads Lead to Floyd
1981-03-12
A bubbly young woman hires Magnum to find her father who, after being missing for over ten years, had sent her a postcard from Hawaii. But her father is involved in some rather shady business, and Magnum isn't the only one looking for him.
E14
Adelaide
1981-03-19
A woman hires Magnum to protect Norman, who is facing kidnap unless she pays a ransom; but the case has some unexpected twists.
E15
Don't Say Goodbye
1981-03-26
Having once been hired by wealthy, blind Agatha Kimball to find her missing granddaughter, Amy, Magnum's services are once again called upon by his elderly friend after she has been contacted by a blackmailer claiming to have some important information about Amy.
E16
The Black Orchid
1981-04-02
Magnum has been hired by a woman to act out some of her rich, bored sister's fantasy dramas, concocted from 1930s Dashiell Hammett films. Although growing to enjoy the world of fantasy, Magnum has a hard time keeping up with the eccentric woman, and when he finds out that her husband is a wealthy, i...
E17
J. "Digger" Doyle
1981-04-09
Magnum tries to impress a beautiful 'fan' of Robin's by showing her the Robin Masters estate, only to learn that she is actually a top security expert hired by Robin to test the estate's security.
E18
Beauty Knows No Pain
1981-04-16
Magnum is hired by Barbara Terranova, a financially broke woman who can only afford his services for one day, to find her missing fiancé Roger. But the case has several tangles in store when Magnum finds there are others searching for Roger, too.

🎭 Cast of Magnum, P.I. Season 1

Tom Selleck
Tom Selleck
Thomas Magnum
John Hillerman
John Hillerman
Jonathan Higgins
Roger E. Mosley
Roger E. Mosley
Terry 'TC' Calvin
Larry Manetti
Larry Manetti
Rick Wright

📋 All Seasons of Magnum, P.I.

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